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author | Nilay Vaish <nilay@cs.wisc.edu> | 2014-10-11 15:02:23 -0500 |
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committer | Nilay Vaish <nilay@cs.wisc.edu> | 2014-10-11 15:02:23 -0500 |
commit | e8ed7b1d1b5bef31e9874f679a5797c2e00d06f1 (patch) | |
tree | 421c9c50377aa664958685914f5504c4c019e21f /ext/dsent/model/timing_graph/ElectricalDriverMultiplier.cc | |
parent | a098fad174d8559037602b248b8e6f7f46bfebbb (diff) | |
download | gem5-e8ed7b1d1b5bef31e9874f679a5797c2e00d06f1.tar.xz |
ext: add the source code for DSENT
This patch adds a tool called DSENT to the ext/ directory. DSENT
is a tool that models power and area for on-chip networks. The next
patch adds a script for using the tool.
Diffstat (limited to 'ext/dsent/model/timing_graph/ElectricalDriverMultiplier.cc')
-rw-r--r-- | ext/dsent/model/timing_graph/ElectricalDriverMultiplier.cc | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/ext/dsent/model/timing_graph/ElectricalDriverMultiplier.cc b/ext/dsent/model/timing_graph/ElectricalDriverMultiplier.cc new file mode 100644 index 000000000..bf8600fd8 --- /dev/null +++ b/ext/dsent/model/timing_graph/ElectricalDriverMultiplier.cc @@ -0,0 +1,53 @@ + +#include "model/timing_graph/ElectricalDriverMultiplier.h" +#include "model/timing_graph/ElectricalLoad.h" + +namespace DSENT +{ + //------------------------------------------------------------------------- + // Electrical Net + //------------------------------------------------------------------------- + + ElectricalDriverMultiplier::ElectricalDriverMultiplier(const String& instance_name_, ElectricalModel* model_) + : ElectricalTimingNode(instance_name_, model_) + { + + } + + ElectricalDriverMultiplier::~ElectricalDriverMultiplier() + { + + } + + double ElectricalDriverMultiplier::calculateDriveRes( double input_drive_res_) const + { + return input_drive_res_; + } + + double ElectricalDriverMultiplier::calculateDelay() const + { + // This is just a model helper element, it does not contribute delay + return 0; + } + + double ElectricalDriverMultiplier::calculateTransition() const + { + return getMaxUpstreamRes() * getTotalDownstreamCap(); + } + + double ElectricalDriverMultiplier::getTotalDownstreamCap() const + { + // Finds the max of the load caps (as opposed to summing) + double max_cap = 0; + vector<ElectricalTimingNode*>* downstream_nodes = ElectricalTimingNode::getDownstreamNodes(); + for (unsigned int i = 0; i < downstream_nodes->size(); ++i) + { + max_cap = std::max(max_cap, downstream_nodes->at(i)->getTotalDownstreamCap()); + } + + return max_cap; + } + +} // namespace DSENT + + |